Finding the Fourth Proportional to 42,538.38, 58,677.66 and 28,949.82

Step by Step Solution

1. Step 1: Write the proportion equation
   42,538.38 : 58,677.66 = 28,949.82 : x
2. Step 2: Convert to fraction form
   42,538.38/58,677.66 = 28,949.82/x
3. Step 3: Cross multiply
   42,538.38x = 58,677.66 × 28,949.82
4. Step 4: Simplify right side
   42,538.38x = 1,698,707,695.02
5. Step 5: Solve for x
   x = 1,698,707,695.02/42,538.38
6. Step 6: Final answer
   x = 39,933.53